12
Copper Test Procedure
1
2
REMOVE STRIP
Remove one (1)
eXact
®
Strip Micro CU, Part No.
486632
from the bottle before beginning the test.
Set the strip in a dry, convenient place and recap
the bottle immediately.
TURN METER ON
Press the
ZERO/ON
button to power the meter on;
the display will show all annunciators, then the
current MENU selection, followed by the last
reading.
DIP STRIP AND PRESS “READ”
Dip the
eXact
®
Strip Micro CU, Part No. 486632
into
the
CELL
and immediately press
READ
. This starts the
20 SECOND
countdown timer. During this time move
the strip in a gentle back and forth motion (approx. 2
strokes/sec).
Remove and discard the strip after “1”
on the display disappears*
. The display will immedi-
ately start counting up from 1 to 20 (this extra time
allows more thorough color development).
READ RESULT DISPLAYED
At 20 sec, the cursor will move across the display
while the meter prepares to measure the sample.
Press READ again. If this reading matches the
previous result, then record this as the Copper value.
If not matching, some water samples may require a 2
ZERO METER*
Press the
ZERO/ON
button. When the display
shows
0.00 PPM
, the sample is ready for testing.
RINSE AND FILL CELL WITH SAMPLE
Rinse the
CELL
at least 3 times with the water sample
you will be testing - rinsing minimizes the potential for
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cell to capacity with the water sample.
SELECT TEST: CU9
Press and re-press the
MENU
button until the
display shows the parameter
CU9
.
CU
CU9
7
5
3
6
*
NOTE: When testing outdoors (sunlight), for best accuracy, use the Mixing Cap/Cell Cover when Zeroing and Reading the sample.
NOTE: Copper reacts with biquinoline to form a purple-colored complex according to the concentration of Copper.
4
minute wait time to complete the reaction. For reporting, you must time the two minutes
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automatically stored in CU9 Menu). After testing is complete, rinse cell immediately.
